1,4-Butanediol (BDO) is a diol of butane with two hydroxyl groups. 1,4-Butanediol is an organic liquid, which can be produced via three different processes on Acetylene + Formaldehyde (Reppe), by butane or propylene oxide to allyl alcohol and then via the hydroformylation to 1,4-Butanediol (BDO).

EINECS-No. 203-786-5
CAS-No. 110-63-4

Formula: C4H10O2
Customs Tariff code: 29053.90

Synonym: 1,4-Butylene glycol | 1,4-Tetramethylene glycol | Tetramethylene glycol | 1,4-Dihydroxybutane | Butane-1,4-diol | Butanediol | 1,4-BD, Tetramethylene-1,4-diol        
Uses/Applications: 1,4-Butanediol (BDO) finds its application in various areas:

- in the production of reactive diluants
- in the production of instrument disinfectants
- as a carrier liquid for ultrasonic application in metal degreasing
- in cast resin / epoxy resins
- in the production of Polybtuylenterephthalat (with DMT or TPA)
- for the manufacture of various chemical products such as 1,4-butanediol di (meth) acrylate
  or Butandiodiglycidylether (BDDE)


 Spezifikation STANDARD

MSDS according 1907/2006/CE, Article 31


More information

Information pertaining to particular dangers for man and environment:
R 22 Harmful if swallowed.

Classification system for 1.4 Butanediol (BDO)
The classification was made according to the latest editions of the EU-lists, and expanded using company data and specialized literature.
Chemical characterization for 1.4 Butanediol (BDO):
CAS No. Description: 110-63-4 butane-1,4-diol

Identification number(s):
EINECS Number: 203-786-5
General Information
for 1.4 Butanediol (BDO):
Form: Fluid
Colour: Colourless
Odour: Nearly odourless

Change in condition:
Melting point/Melting range: 20°C
Boiling point/Boiling range: 230°C
Flash point: ~ 135°C
Ignition temperature: 385°C
Decomposition temperature: 500°C
Danger of explosion: Product is not explosive. However, formation of explosive air/vapour mixtures are

Explosion limits:


1.8 Vol %
Upper: 15.7 Vol %
Vapour pressure at 20°C: < 1 hPa
Density at 20°C: 1.02 g/cm³

Solubility in / Miscibility with

Segregation coefficient (n-octanol/water): - 0.88 log POW
Land transport ADR/RID (cross-border) for 1.4 Butanediol (DBO):
ADR/RID class:
No hazardous good according to the regulation.

Maritime transport IMDG:
IMDG Class: No hazardous good according to the regulation.

Air transport ICAO-TI and IATA-DGR:
ICAO/IATA Class: No hazardous good according to the regulation.
Markings according to EC guidelines for 1.4 Butanediol (BDO):
The product has been classified and marked
in accordance with EU Directives / Ordinance on Hazardous Materials

Risk phrases:

22 Harmful if swallowed.

Safety phrases:

36 Wear suitable protective clothing.
60 This material and its container must be disposed of as hazardous waste.

National regulations

Information about limitation of use:

Restrictions on juvenile employment must be observed.
Employment restrictions concerning pregnant and lactating women must be observed.

Water hazard class:
Water hazard class 1 (Assessment by list): slightly hazardous for water.

Hazard description

GHS hazard labels

Hazardous material sign